detail view sample V23_017
treatment method: | Einstufige PEG-Konservierung |
Conservation Laboratory: | Natmus Kopenhagen |
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wet weight | 1036.3 g | weight under water | 84 g | ||||
weight after impregnation | no value | weight after drying | 599.8 g | ||||
Umax | 311.0 % | degree of degradation | 2 | ||||
residual density | 0.26 g/cm3 | volume (water displacement) | 952.3 cm3 | ||||
density before conservation | 1.08 g/cm³ | final density | 0.63 g/cm³ | ||||
impregnation | no value | proportion of impregnating agent | 55.5 % |
nail spacing | before | after | shrinkage |
radial | 67.0 mm | 66.6 mm | 0.5 % |
tangential | 50.8 mm | 50.8 mm | 0.0 % |
longitudinal | 86.4 mm | 86.3 mm | 0.1 % |
volume shrinkage: | 0.5 % |
ASE-radial | 96.2 % | ASE-tangential | 100.3 % |
ASE-longitudinal | 98.7 % | ASE volume | 98.1 % |
volume (previous state) | 955.9 cm3 | volume (final state) | 955.5 cm3 | volume shrinkage | 0.0 % |
surface (previous state) | 627.4 cm2 | surface (final state) | 609.0 cm2 | Surface change | -2.9 % |
radial cut surface (previous state) | 8241.0 mm2 | radial cut surface (final state) | 8333.8 mm2 | radial shrinkage | -1.1 % |
tangential cut surface (previous state) | 6046.8 mm2 | tangential cut surface (final state) | 6062.1 mm2 | tangential shrinkage | -0.3 % |
longitudinal measurement (previous state) | 131.8 mm | average length change | -0.3 mm | longitudinal shrinkage | -0.5 % |
ASE-radial | 103.5 % | ASE-tangential | 100.9 % |
ASE-longitudinal | 122.8 % | ASE volume | 99.9 % |
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pretreatment | Keine weitere Vorbehandlung | |
impregnation | impregnant: | PEG 2000, 10-40%-Lösung mit Leitungswasser |
impregnation process: | Einlegen der Hölzer in 10%-PEG 2000-Lsg., steigern der Konzentration bis auf 40%, keine zusätzliche Erwärmung der Bäder - Tränkung bei Raumtemperatur | |
drying | Gefriertrocknung in gekühlter Kammer (ca. -30°C) | |
aftercare | Entfernen des PEG-Überschusses von der Oberfläche mit weichem Pinsel und Ethanol, Kleben (minimal) abgängiger Späne/Fragmente mit Paraloid B72 (40% in Aceton) |
duration pretreatment | no value | duration impregnation | 149 weeks | duration drying | 20 weeks |
total duration of conservation: | 169 weeks |
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